Jack in the Box (JACK) said Wednesday its board adopted a limited-duration stockholder rights plan, effective immediately, in response to Biglari Capital's accumulation of a stake in the company.
Biglari now owns 9.9% of Jack in the Box's common stock, with plans to boost the shareholding, the company said.
The poison pill adoption is meant to "protect the interests of all stockholders," Jack in the Box said.